FR2143286B1 - - Google Patents
Info
- Publication number
- FR2143286B1 FR2143286B1 FR7222549A FR7222549A FR2143286B1 FR 2143286 B1 FR2143286 B1 FR 2143286B1 FR 7222549 A FR7222549 A FR 7222549A FR 7222549 A FR7222549 A FR 7222549A FR 2143286 B1 FR2143286 B1 FR 2143286B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/06—Measuring depth of modulation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Tests Of Electronic Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15555671A | 1971-06-22 | 1971-06-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2143286A1 FR2143286A1 (oth) | 1973-02-02 |
| FR2143286B1 true FR2143286B1 (oth) | 1977-12-23 |
Family
ID=22555905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7222549A Expired FR2143286B1 (oth) | 1971-06-22 | 1972-06-22 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3693076A (oth) |
| JP (1) | JPS553673B1 (oth) |
| CA (1) | CA943254A (oth) |
| DE (1) | DE2229609A1 (oth) |
| ES (1) | ES403484A1 (oth) |
| FR (1) | FR2143286B1 (oth) |
| GB (1) | GB1382893A (oth) |
| IL (1) | IL39487A (oth) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1509913A (en) * | 1974-05-21 | 1978-05-04 | Racal Instruments Ltd | Electrical circuit arrangements for converting an input signal of variable frequency to a signal of predetermined mean frequency |
| US4002970A (en) * | 1976-01-26 | 1977-01-11 | The United States Of America As Represented By The Secretary Of The Army | Optimum threshold transmission line discriminator |
| US4002969A (en) * | 1976-01-26 | 1977-01-11 | The United States Of America As Represented By The Secretary Of The Army | Optimum length transmission line discriminator with low noise detector |
| US4002971A (en) * | 1976-01-26 | 1977-01-11 | The United States Of America As Represented By The Secretary Of The Army | Wide operating frequency range transmission line discriminator |
| US4034285A (en) * | 1976-08-30 | 1977-07-05 | The United States Of America As Represented By The Secretary Of The Army | Superheterodyne noise measuring discriminators |
| JPS5546154A (en) * | 1978-09-28 | 1980-03-31 | Tech Res & Dev Inst Of Japan Def Agency | Spectrum analyzer |
| US4412348A (en) * | 1982-04-16 | 1983-10-25 | Rca Corporation | Apparatus for testing linearity of an FM transmitter |
| JPS59157576A (ja) * | 1983-02-27 | 1984-09-06 | Anritsu Corp | スペクトラムアナライザ |
| US4608647A (en) * | 1983-10-24 | 1986-08-26 | E-Systems, Inc. | Method and apparatus for determining the noise power ratio (NPR) of a unit under test |
| US4641086A (en) * | 1984-01-09 | 1987-02-03 | Hewlett-Packard Company | Vector network analyzer with integral processor |
| US4667151A (en) * | 1984-12-07 | 1987-05-19 | Hughes Aircraft Company | Calibrated radio frequency sweep |
| US4837498A (en) * | 1987-09-29 | 1989-06-06 | Hewlett-Packard Company | Method and apparatus for setting the signal-to-noise ratio of a carrier wave |
| US6137992A (en) * | 1997-07-01 | 2000-10-24 | Chrysler Corporation | Vehicle audio distortion measurement system |
| US20050137814A1 (en) * | 2003-12-19 | 2005-06-23 | Joseph Kelly | Method of measuring noise figure using arbitrary waveforms |
| US7333051B2 (en) * | 2004-11-19 | 2008-02-19 | Lockheed Martin Corporation | Methods and devices for determining the linearity of signals |
| RU2279097C1 (ru) * | 2004-12-07 | 2006-06-27 | Военно-космическая академия им. А.Ф. Можайского Министерства обороны РФ | Устройство для измерения частоты входного сигнала панорамного радиоприемника |
| CN102621382B (zh) * | 2012-03-22 | 2013-12-11 | 清华大学 | 一种检测电力系统中电气信号频率、相位和幅值的方法 |
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1971
- 1971-06-22 US US155556A patent/US3693076A/en not_active Expired - Lifetime
-
1972
- 1972-05-15 GB GB2263872A patent/GB1382893A/en not_active Expired
- 1972-05-17 CA CA142,372A patent/CA943254A/en not_active Expired
- 1972-05-21 IL IL39487A patent/IL39487A/xx unknown
- 1972-06-03 ES ES403484A patent/ES403484A1/es not_active Expired
- 1972-06-19 DE DE19722229609 patent/DE2229609A1/de not_active Ceased
- 1972-06-22 FR FR7222549A patent/FR2143286B1/fr not_active Expired
- 1972-06-22 JP JP6190472A patent/JPS553673B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IL39487A (en) | 1974-12-31 |
| ES403484A1 (es) | 1975-05-01 |
| GB1382893A (en) | 1975-02-05 |
| CA943254A (en) | 1974-03-05 |
| JPS4812065A (oth) | 1973-02-15 |
| IL39487A0 (en) | 1972-09-28 |
| FR2143286A1 (oth) | 1973-02-02 |
| US3693076A (en) | 1972-09-19 |
| JPS553673B1 (oth) | 1980-01-26 |
| DE2229609A1 (de) | 1972-12-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |